Class 2 logical reasoning: puzzles, clues and thinking it through
Logical reasoning is the topic that feels least like "sums" and most like a game. Children read a few clues, or spot the odd one out, and work out the answer by thinking rather than calculating. It is exactly the kind of thinking Olympiad papers reward.
The habit to build is going slowly: read every clue, hold them together, and check the answer against all of them. A child who learns to reason one careful step at a time is being prepared for far more than one exam.
What your child needs to know
- Spot the odd one out in a group and say why
- Put things in order from clues (tallest, heaviest, first)
- Solve simple "I am a number" riddles
- Sort objects by a property such as colour, shape or size
- Check an answer against every clue before deciding
Worked examples
Which is the odd one out: apple, banana, car, mango?
Hint — three of them belong to the same group.
Apple, banana and mango are all fruits. A car is not, so the odd one out is the car.
Riya is taller than Arjun. Arjun is taller than Meena. Who is the tallest?
Hint — line them up from the clues, tallest at the front.
Riya is above Arjun, and Arjun is above Meena, so the order is Riya, Arjun, Meena. The tallest is Riya.
I am a number. I am more than 5 and less than 7. What number am I?
Hint — which whole number sits between 5 and 7?
The only whole number between 5 and 7 is 6.
A bag has 3 red balls and 2 blue balls. Without looking, which colour are you more likely to pick?
Hint — there are more of one colour.
There are more red balls than blue, so you are more likely to pick a red ball.
How Olympiads test this
Reasoning is at the heart of what Olympiads such as SOF IMO and CREST CMO set at Class 2: odd-one-out, ordering from clues, simple number riddles, and sorting by a property. These questions look playful but reward careful, step-by-step thinking. Puzzling together at home — riddles, "who is taller" — is the best preparation, and no page can predict a particular exam's questions.
Practice questions
Show 5 practice questions and answers
- Odd one out: dog, cat, chair, cow. — chair
- A is heavier than B. B is heavier than C. Who is lightest? — C
- I am a whole number between 8 and 10. What am I? — 9
- If today is Monday, what is tomorrow? — Tuesday
- Odd one out: 2, 4, 7, 6. — 7 (it is odd; the rest are even)
Inside Talyzo: World 12, Folktales
Logical reasoning is World 12, told through folktales — riddles from clever characters and puzzles with a twist. As in every world, each question gives a hint before the answer and a full explanation after, so thinking it through becomes a child's favourite kind of challenge.
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